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Vary the concentration of sodium thiosulphate and investigate the effect on the rate of reaction between sodium thiosulphate and hydrochloric acid.
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Science Coursework The meaning of rate of reaction is how fast a reaction goes in a given interval of time. For a chemical reaction to happen the reacting particles must collide with each other with enough force or energy (the activation energy) to break bonds. This is the collision theory. Many factors can affect the rate of reaction 1. Temperature 2. Concentration of solution 3. Using of a catalyst 4. Surface area of solid 5. Pressure In agriculture, industry, and everyday life we often want to control the rate of reaction. Gardeners keep tomatoes inside greenhouses because a greenhouse keeps the temperature high and that makes the tomatoes ripen quicker. At home when we prepare a meal we heat food this changes the food into new, more delicious substances. Particles in a gas are wide apart but if the pressure is increased the particles are bought close together and are more...
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